Donner Octave Pitch Guitar Pedal Harmonic Square First Look Review

Donner has proven to be a quality company in the guitar pedal market over the last few years. I own about 30 of their guitar pedals, 5 of their ukulele’s, and some of their other music related products.

Today we’ll have a look at the Donner Harmonic Square mini guitar pedal. You can get a lot of cool sounds from this pedal. Beef up your single note riffs and solos, get a 12 string kind of sound, a bass sound, and many other kinds of tones. You get 7 modes, +2, +3, +4, +5, +6, 1 octave, and 2 octaves. Each mode can be tuned up, tuned down or detuned, so it’s more like 21 modes plus a wet and dry mix to even things out. I tried this with a 12 string electric as well (not in a video) and got even more cool sounds. Overall, I Love this pedal and would recommend it. Check out the video to hear some sounds.

Where to Buy?

You can buy the Donner Octave Harmonic Square Guitar Pedal – Here.

Related Posts:

Xvive Reviews – many cheap guitar pedals, guitar wireless system, ukuleles and more. (that’s cheap as in less expensive.)

 Xvive U2 Wireless Guitar System First Look Review Part 1

Donner Reviews more inexpensive guitar pedals, ukuleles and more.


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Donner Digital Octave Guitar Effect Pedal Harmonic Square 7 modes










Ease of Use



  • Compact and well built
  • Inexpensive.
  • Sounds great
  • 21 settings.
  • Individual wet & dry knobs


  • You need your own power supply
  • minus 2 octaves is barely audible on lower notes
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